Asda is rolling out new electronic labels in 142 stores, with the changes going live this week.
Allergy and ingredient information will now be displayed on bakery products.
The supermarket chain will begin displaying the information on electronic shelf-edge labels in Asda Express stores that offer loose bakery products.
A total of 20 bakery items will be included in the scheme.
Tom Clark, retail operations manager at Asda, said: "I have a proud moment to share.
"Today marks the successful launch of Natasha’s Law allergen and calorie information for bakery products on Vusion electronic shelf-edge labels across over 140 Asda Express stores.
"This is a significant step forward in making food information clearer, more accessible, and compliant for our customers; helping them make informed and safe choices every day."
A spokesperson for Asda said: "Our electronic shelf-edge labels help us to quickly and easily display important product information for our customers.
"Customers can quickly view ingredient and allergen information for bakery items.
"This will help them make informed choices and improve the shopping experience while also supporting our compliance with the requirements of Natasha’s Law."
Natasha’s Law was introduced in October 2021 in memory of 15-year-old Natasha Ednan-Laperouse, who died after eating a Pret a Manger baguette containing undeclared sesame seeds.
The legislation requires all food prepared and packaged on site to include a full list of ingredients and emphasise the top 14 allergens.
Loose bakery products do not have packaging, so this information must be provided through other means.
No scanning or QR codes are required.
Asda Rewards change introduced across UK
Asda has announced a major change to its rewards scheme, with shoppers now able to unlock money off fuel for the first time.
Members of the retailer’s Rewards scheme can now get 5p off every litre of fuel by spending £40 or more in a single in-store transaction.
The offer is part of Asda’s new Grocery & Fuel Bonus and is available at participating stores until July 31.
Rachel Eyre, chief customer officer at Asda, said: "We're making Asda Rewards even more rewarding.
"Asda is more than just a supermarket and we're always looking for new ways to help families save on top of our low prices.
"Through our new Grocery and Fuel Bonus, customers can now unlock savings on fuel alongside their weekly shop, another step in our plans to keep growing Asda Rewards and give our customers even more value every time they shop."
Once customers have made a qualifying purchase, a 5p per litre fuel coupon will be automatically added to their Asda Rewards app.
The coupon can be redeemed at participating Asda filling stations by scanning the Rewards barcode and coupon at the pump or kiosk.
Motorists filling a standard 60-litre tank could save up to £3 per fill.
The offer is currently available at 321 Asda supermarkets and Asda Express stores with Asda-branded fuel, with plans to extend it to more locations and beyond August.
This is the first time the Asda Rewards programme has offered discounts on fuel.
The discount adds to existing app 'Missions' that reward customers with pounds back on selected purchases.
Asda recently updated the Rewards app to include more personalised Missions based on the products customers buy most often.
Customers can check which stores are taking part in the promotion and read the full terms and conditions on the Asda website or in the app.
